I don't really know, although we assume late...when my mom was first pregnant with me thet told her it was just a bad case of nerves (and she has been suffering ever since ) My brother was early (due early April, born March 23; and my sister was late (due in March, born April 2). My niece was right on time Due January 11...the very day Christy went in to labor, and born around 1:30am the 12th